My sql issue

Hi ,

I am Getting issue /usr/local/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in require': cannot load such file -- mysql (LoadError)
from /usr/local/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:inrequire'

            Can you please help me on the same how i can fix this issue 

            Regards,
            Dharmesh Shukla